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Buy-and-hold investing is the most logical and data-proven method of investing for individual investors. This is generally accepted among the investment community. But there will always be detractors,many who use data to make points that sound reasonable.

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I recently made a chart of all the smart-sounding temptations to sell during a period when the market went up 100-fold.

(Click image to enlarge).

Blogger Austin Frankrespondedthat this didn't prove much. "'Buy and Hold' is a Fairy Tale," he wrote.

His most compelling argument the most common argument people use to discredit buy-and-hold investing is that from the mid-1960s to the mid-1980s (almost a whole generation) real stock returns were flat. You made no money at all.

Frank writes:

This is true. You can see it in the chart. The 1960s-1980s bear market lasted so long it was almost old enough to drink.

But what was the alternative?

That's the only relevant question.If you shouldn't have owned stocks during this period, you had to do something else with your money.And there are two other places where the vast majority of investors could put their money: bonds and cash.

To judge whether it was smart to own stocks from the 1960s to 1980s, we have to compare against those alternatives.

You can see where this was going. The only thing more miserable than stocks during this period were bonds and cash.

Stocks were basically flat during this 20-year period. That's landing in the Hudson. Bonds lost nearly a quarter of their value after inflation. That's crashing in the Bronx.

In hindsight we can poke fun of the poor buy-and-hold souls who waited 20 years for nothing. But they did better than the majority of people who did anything else. Sure, you could have owned gold, or oil, or timber all of which surged during these 20 years. But you're kidding yourself if you think you could have timed those trades just right, especially since commodities were decimated in the early 1980s as the economy recovered. And sure, you could have bought and sold stocks at opportune times, riding the ups and avoiding the downs. But not one investor in a million actually pulled this off.

Daniel Kahneman summed it up so well in his bookThinking Fast and Slow:

The wisdom of buy and hold is not that stocks always outperform. They don't. And it's not that you'll always get rich over time. You won't. It's that stocks tend to be the best-performing asset over long periods of time, and trying to shorten that time by jumping in and out of other assets is the express lane to misery and regret.

The best solution is balance. Buy and hold doesn't mean you only own stocks; it means you hold an appropriate balance of diversified assets that fits your goals. Everyone should own enough bonds to keep volatility from scaring them out of stocks, and enough stocks to keep the low returns of bonds from scaring them out of retirement. That's true buy and hold.